Finding the Fourth Proportional to 68,657,169.30, 103,153,715.55 and 51,651,057.30
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Solution
The fourth proportional to 68,657,169.30, 103,153,715.55 and 51,651,057.30 is: 77,602,944.12
Step by Step Solution
- Step 1: Write the proportion equation
68,657,169.30 : 103,153,715.55 = 51,651,057.30 : x - Step 2: Convert to fraction form
68,657,169.30/103,153,715.55 = 51,651,057.30/x - Step 3: Cross multiply
68,657,169.30x = 103,153,715.55 × 51,651,057.30 - Step 4: Simplify right side
68,657,169.30x = 5,327,998,472,580,951 - Step 5: Solve for x
x = 5,327,998,472,580,951/68,657,169.30 - Step 6: Final answer
x = 77,602,944.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.